E. N. Maksimova, V. I. Maksimov, M. A. Semkin
ON THE PROBLEMS OF DECIPHERING THE REAL STRUCTURE OF THE (Sm0,9Zr0,1)Fe11Ti ALLOY PREPARED BY MELT SPINNING
DOI: 10.17804/2410-9908.2025.6.039-049 This study discusses the crucial problems arising in deciphering the atomic structure of the (Sm0,9Zr0,1)Fe11Ti melt-spun intermetallic alloy. X-ray and neutron diffraction analysis reveal significant data discrepancies attributed to partial material amorphization. It is shown that standard phase analysis methods must be modified to characterize adequately the structural states in ThMn12-type systems after rapid quenching. A model of divacancy formation in a 3D-atom sublattice as a potential destructuring mechanism is proposed. Verification of the structural models will require additional research techniques.
Acknowledgement: The work was performed under the state assignment for the IMP UB RAS from the Russian Ministry of Science and Higher Education. The IPM Neutron Materials Science Complex unique research setup was used for the research. Keywords: amorphization, divacancies, intermetallics, neutron diffraction, spinning, structural defects, ThMn12 structure References:
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Е. Н. Максимова, В. И. Максимов, М. А. Семкин
К ВОПРОСУ О ПРОБЛЕМАХ РАСШИФРОВКИ РЕАЛЬНОЙ СТРУКТУРЫ СПЛАВА (Sm0,9Zr0,1)Fe11Ti ПОСЛЕ СПИННИНГОВАНИЯ
В работе рассмотрены ключевые проблемы, возникающие при расшифровке атомной структуры интерметаллического сплава (Sm0,9Zr0,1)Fe11Ti, подвергнутого спиннинговой обработке. Методами рентгеновской дифракции и нейтронографии выявлены существенные расхождения в данных, связанные с частичной аморфизацией материала. Показано, что стандартные подходы к фазовому анализу требуют модификации для адекватного описания структурных состояний в системах типа ThMn12 после быстрой закалки. Предложена модель образования дивакансий в подрешетке 3D-атомов как возможный механизм деструктуризации. Для верификации структурных моделей рекомендовано привлечение дополнительных методов исследования.
Благодарность: Работа выполнена в рамках государственного задания Минобрнауки России для ИФМ УрО РАН на базе уникальной научной установки «Нейтронный материаловедческий комплекс ИФМ». Ключевые слова: аморфизация, дефекты структуры, дивакансии, интерметаллиды, нейтронография, спиннингование, структура ThMn12 Библиография:
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- Intrinsic magnetic properties of Sm(Fe1-xCox)11Ti and Zr-substituted Sm1-yZry(Fe0.8Co0.2)11.5Ti0.5 compounds with ThMn12 structure toward the development of permanent magnets / P. Tozman, H. Sepehri-Amin, Y. K. Takahashi, S. Hirosawa, K. Hono // Acta Materialia. – 2018. –Vol. 153. – P. 354–363. – DOI: 10.1016/j.actamat.2018.05.008.
- Structure and magnetic properties of (Sm0.9Zr0.1)Fe11Ti alloys with ThMn12-type structure / D. S. Neznakhin, S. V. Andreev, M. A. Semkin, N. V. Selezneva, M. N. Volochaev, A. S. Bolyachkin, N. V. Kudrevatykh, A. S. Volegov // Journal of Magnetism and Magnetic Materials. – 2019. – Vol. 484. – P. 212–217. – DOI: 10.1016/j.jmmm.2019.04.030.
- Kurner W., Krugel G., Elsasser C. Theoretical screening of intermetallic ThMn12-type phases for new hard-magnetic compounds with low rare earth content // Scientific Reports. – 2016. – Vol. 6. – P. 24686. – DOI: 10.1038/srep24686.
- URL: https://www.ill.eu/sites/fullprof/ (дата обращения: 29.10.2025).
- Structure and magnetic properties of (Sm1-хZrх)Fe11Ti (х=0-0.2) alloys / I. Ryzhikhin, S. Andreev, M. Semkin, N. Selezneva, A. Volegov, N. Kudrevatykh // Journal of Physics: Conference Series. – 2019. – Vol. 1389. – P. 012117–5. – DOI: 10.1088/1742-6596/1389/1/012117.
- Florio J. V., Rundle R. E., Snow A. I. Compounds of thorium with transition metals. I. The thorium-manganese system // Acta Crystallographica. – 1952. – Vol. 5 – P. 449–457. – DOI 10.1107/s0365110x52001337.
- Кривоглаз М. А. Теория рассеяния рентгеновских лучей и тепловых нейтронов реальными кристаллами. – М. : Наука, 1967. – 336 с.
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- On possible states of the crystal structure preceding to a phase transition in Zn1−xVxSe (0.01 ≤ x ≤ 0.10) crystals / V. I. Maksimov, E. N. Maksimova, T. P. Surkova, A. P. Vokhmyanin // Physics of the Solid State. – 2018. – Vol. 60 (12). – P. 2424–2435. – DOI: 10.1134/S1063783419010177.
- Structural state of metastable cubic compounds Ni1–xZnxO (0.6≤x≤0.99) / V. I. Maksimov, S. F. Dubinin, A. N. Baranov, V. I. Sokolov, P. S. Sokolov, V. D. Parkhomenko // The Physics of Metals and Metallography. – 2013. – Vol. 114. – P. 734–740. – DOI: 10.1134/S0031918X13060094.
- Maksimov, V.I., Maksimova, E.N., Surkova, T.P., and Parkhomenko, V.D. Neutron diffraction characterization of the microstrain fields in the dilute ZnSe:Co magnetic semiconductor crystals. Physics of the Solid State, 2021, 63, 1237–1243. DOI: 10.1134/S1063783421080175.
Библиографическая ссылка на статью
Maksimova E. N., Maksimov V. I., Semkin M. A. On the Problems of Deciphering the Real Structure of the (sm 0,9zr 0,1)fe11ti Alloy Prepared by Melt Spinning // Diagnostics, Resource and Mechanics of materials and structures. -
2025. - Iss. 6. - P. 39-49. - DOI: 10.17804/2410-9908.2025.6.039-049. -
URL: http://dream-journal.org/issues/content/article_525.html (accessed: 18.04.2026).
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